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path: root/tests/spec/arb_arrays_of_arrays/execution/sampler/fs-struct-non-const-index-sampler-non-const-index.shader_test
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# This test verifies that dynamically uniform indexing of sampler arrays
# in the fragment shader behaves correctly.

[require]
GLSL >= 1.50
GL_ARB_gpu_shader5

[vertex shader passthrough]

[fragment shader]
#version 150
#extension GL_ARB_gpu_shader5: require

struct S {
   sampler2D tex[2];
};

uniform S s[2][2];

uniform int n;
uniform int m;

out vec4 color;

void main()
{
	color = texture(s[n][1].tex[m], vec2(0.75, 0.25));
}

[test]
clear color 0.2 0.2 0.2 0.2
clear

uniform int s[0][1].tex[0] 0
uniform int s[0][1].tex[1] 1
uniform int s[1][1].tex[0] 2
uniform int s[1][1].tex[1] 3

texture checkerboard 0 0 (32, 32) (0.5, 0.0, 0.0, 0.0) (1.0, 0.0, 0.0, 0.0)
texparameter 2D min nearest
texparameter 2D mag nearest

texture checkerboard 1 0 (32, 32) (0.5, 0.0, 0.0, 0.0) (0.0, 1.0, 0.0, 0.0)
texparameter 2D min nearest
texparameter 2D mag nearest

texture checkerboard 2 0 (32, 32) (0.5, 0.0, 0.0, 0.0) (0.0, 0.0, 1.0, 0.0)
texparameter 2D min nearest
texparameter 2D mag nearest

texture checkerboard 3 0 (32, 32) (0.5, 0.0, 0.0, 0.0) (1.0, 1.0, 1.0, 1.0)
texparameter 2D min nearest
texparameter 2D mag nearest

uniform int n 0
uniform int m 0
draw rect -1 -1 1 1

relative probe rect rgb (0.0, 0.0, 0.5, 0.5) (1.0, 0.0, 0.0)

uniform int n 0
uniform int m 1
draw rect 0 -1 1 1

relative probe rect rgb (0.5, 0.0, 0.5, 0.5) (0.0, 1.0, 0.0)

uniform int n 1
uniform int m 0
draw rect -1 0 1 1

relative probe rect rgb (0.0, 0.5, 0.5, 0.5) (0.0, 0.0, 1.0)

uniform int n 1
uniform int m 1
draw rect 0 0 1 1

relative probe rect rgb (0.5, 0.5, 0.5, 0.5) (1.0, 1.0, 1.0)